OPTICAL PATH CONTROLLER OF CAMERAS HAVING PHOTOGRAPHING INFORMATION IMPRINTING MECHANISM

摘要

PURPOSE:To prevent the reverse incident light throgh finder from tramsmitting in the imprinting optical path, arriving at the film plane and exposing the film by providing shutter members which open-and close-control respective optical paths in finder optical path and imprinting optical path. CONSTITUTION:In a camera capable of leading photographing information into a finder optical path 34 and an imprinting optical path 35 by having a photographing information imprinting mechanism, a shutter member 33 for controlling visual checking of photographing information which cuts off the finder optical path 34 in cooperation with the release operation of the camera and a shutter member 44 for controlling imprinting which cuts off the imprinting optical path 35 are provided, whereby the reverse incident light is prevented from reaching the exposure plane of the film 4 through the finder optical path 34 and causing unnecessary exposure to be effected during release operation of the camera.